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Given a list of integers nums and an integer k, return whether there are four distinct elements in the list that add up to k. Constraints n ≤ 100 …
Given a directed graph represented as an adjacency list, return its reverse so if an edge goes from A to B, it now goes from B to A. Each …
Given a positive integer n, return whether n can be written as the sum of distinct positive factorial numbers. Example 1 Input n = 31 Output true Explanation Since …
Given a list of positive integers nums, return whether you can divide the list into two groups a and b such that: The sum of a and the sum …
Given a list of unique integers nums sorted in ascending order, return the minimum i such that nums == i. If there’s no solution, return -1. This should be …